Hi Everyone, I had some questions about the calculated brightness temperature in ARTS.
When I calculate the brightness temperature for an atmospheric scenario in "horizon looking mode" and in clearsky. I get a brightness temperature at 183.31 GHz (Water vapor absorption line), which is about 3 to 6 degrees lower than the ambient temperature. I would assume that at the water vapor absorption line and at low altitudes (~2 km above sea level), I should measure very close to the ambient temperature (Due to high absorption). So, my questions are: 1.) Is this brightness temperature bias expected?, or can something else cause this? Thanks, Renish
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